Troubleshooting
Service Instructions 878-M PREMIUM - 03.0 - 10/2019 119
Loose stitches Thread tensions are not
adjusted to the sewing
material, the sewing
material thickness or the
thread used
Check the thread tensions
Needle thread and hook
thread have not been
threaded correctly
Check the threading path
Needle breakage Needle strength is
unsuitable for the sewing
material or the thread
Use the recommended needle
strength
Error Possible causes Remedial action
To Next Page
Loading...
